A5035532614- Cold Atom Physics and Bose-Einstein Condensates
- Atomic and Molecular Physics
- Atomic and Subatomic Physics Research
- Advanced Frequency and Time Standards
- Spectroscopy and Laser Applications
- Mass Spectrometry Techniques and Applications
- Laser Design and Applications
- Radioactive Decay and Measurement Techniques
- Scientific Measurement and Uncertainty Evaluation
- Quantum Information and Cryptography
- Atmospheric Ozone and Climate
- Advanced Fiber Laser Technologies
- Dark Matter and Cosmic Phenomena
- Quantum optics and atomic interactions
- Advanced Chemical Physics Studies
- Ionosphere and magnetosphere dynamics
- Particle accelerators and beam dynamics
- Mechanical and Optical Resonators
- Electrochemical Analysis and Applications
- Catalysis and Oxidation Reactions
- Computational Physics and Python Applications
- Advanced Materials Characterization Techniques
- Radiation Therapy and Dosimetry
- Experimental and Theoretical Physics Studies
- Radiation Effects in Electronics
Saint Thomas - Rutherford Hospital
2024
Rutherford Appleton Laboratory
2017-2024
Research Complex at Harwell
2022
Mars Space (United Kingdom)
2021
Institute of Photonic Sciences
2009-2019
University of Birmingham
2011-2014
Birmingham Research Park
2013
Laboratoire Kastler Brossel
2007
Laboratoire Amiénois de Mathématique Fondamentale et Appliquée
2007
Johannes Gutenberg University Mainz
2001-2006
Atom interferometers covering macroscopic domains of space-time are a spectacular manifestation the wave nature matter. Because their unique coherence properties, Bose-Einstein condensates ideal sources for an atom interferometer in extended free fall. In this Letter we report on realization asymmetric Mach-Zehnder operated with condensate microgravity. The resulting interference pattern is similar to one far field double slit and shows linear scaling time packets expand. We employ...
We outline the experimental concept and key scientific capabilities of AION (Atom Interferometer Observatory Network), a proposed programme using cold strontium atoms to search for ultra-light dark matter, explore gravitational waves in mid-frequency range between peak sensitivities LISA LIGO/Virgo/ KAGRA/INDIGO/Einstein Telescope/Cosmic Explorer experiments, probe other frontiers fundamental physics. would complement planned searches as well mergers involving intermediate-mass black holes...
We present an experimental value for the g factor of electron bound in hydrogenlike oxygen, which is found to be g(expt)=2.000 047 025 4 (15)(44). The experiment was performed on a single 16O7+ ion stored Penning trap. For first time, expected line shape g-factor resonance calculated essential minimizing systematic uncertainties. measurement agrees within 1.1 sigma with predicted theoretical g(theory)=2.000 020 2 (6). It represents stringent test bound-state quantum electrodynamics 0.25%...
This paper outlines the centralized design and production of ultra-high-vacuum sidearm laser-stabilization systems for AION Ultra-Cold Strontium Laboratories. Commissioning data on residual gas steady-state pressures in chambers, magnetic field quality, laser stabilization, loading rate 3D magneto-optical trap are presented. Streamlining stabilization enabled Collaboration to build equip parallel five state-of-the-art Laboratories within 24 months by leveraging key expertise collaboration....
This paper presents the current status and future prospects of Space Atom Interferometer project (SAI), funded by European Agency. interferometry provides extremely sensitive accurate tools for measurement inertial forces. Operation atom interferometers in microgravity is expected to enhance performance such sensors. Main goal SAI demonstrate possibility placing space. The resulting drop-tower compatible acceleration sensor prototype described. Expected limits potential scientific...
We report the operation of a 50 mW continuous-wave quantum cascade laser (QCL) in 9.2 microm range, phase locked to single-mode CO(2) with tunable frequency offset. The wide free-running emission spectrum QCL (3-5 MHz) is strongly narrowed down kilohertz making it suitable for high-resolution molecular spectroscopy.
Atom interferometers (AIs) are promising tools for precision measurement with applications ranging from geophysical exploration and tests of the equivalence principle general relativity to detection gravitational waves. Their optimal sensitivity is ultimately limited by their noise. We review resonant near-resonant methods detect atom number interferometer outputs, we theoretically analyze relative influence various scheme dependent noise sources technical challenges affecting detection....
A method has been developed and applied for the determination of electronic g-factor single hydrogen-like ions stored in a Penning trap. The is based on mode coupling ion trapping motions conceptionally advantageous as compared to previously used methods. It oxygen 16O7+ yields value gJ-factor which agreement with determined values. Experimental requirements possibilities new are discussed.
We observe optical bistability as well oscillations in the upper bistable branch when cold ytterbium atoms are dispersively coupled to a high finesse cavity. Comparable previous observations were explained by atomic density case of Bose-Einstein condensate or pumping cloud cesium. Both explanations do not apply our thermal with only single ground state. propose simple two-level model including saturation describe experimental results. This paper introduces setup, derives mentioned model, and...
Abstract We present iSense , a recently initiated FET project aiming to use Information and Communication Technologies (ICT) develop platform for portable quantum sensors based on cold atoms. A prototype of backpack-size highprecision force sensor will be built demonstrate the concept.
An M-class mission proposal in response to the 2021 call ESA's science programme with a broad range of objectives fundamental physics, which include testing Equivalence Principle and Lorentz Invariance, searching for Ultralight Dark Matter probing Quantum Mechanics.
The magnetic moment of the electron bound in hydrogen-like oxygen O 7+ has been determined using "continuous SternGerlach effect" a double Penning trap. We obtained relative precision 2 x 10 9 . This tests calculations bound-state quantum electrodynamics and nuclear correction. PACS No.: 32.10Dk
We report on our recent advances in the calculation of energy levels H + 2 molecular ion, including relativistic and radiative corrections. These theoretical efforts are linked to prospect obtaining a new determination proton electron mass ratio m p /m e through precise vibrational spectroscopy . describe setup experiment, aiming at measurement L = 2, υ 0 → 1 two-photon transition 9.166 μm using phase-locked quantum cascade laser as excitation source.PACS Nos.: 31.15.Pf, 31.30.Jv, 32.10.Hq
We extend the technique originally proposed by [Honda et al., Phys. Rev. A 59, R934 (1999)] to measure temperature of ytterbium and alkaline-earth-metal atoms confined in a magneto-optical trap (MOT). The method is based on analysis excitation spectra obtained probing ${}^{1}{\text{S}}_{0}\ensuremath{\rightarrow}{}^{3}{\text{P}}_{1}$ intercombination line. Thanks careful modeling effects caused MOT light probe transition we overcome resolution precision limits encountered previous works....